190273913 has 2 divisors, whose sum is σ = 190273914. Its totient is φ = 190273912.

The previous prime is 190273883. The next prime is 190273921. The reversal of 190273913 is 319372091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139051264 + 51222649 = 11792^2 + 7157^2 .

It is an emirp because it is prime and its reverse (319372091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190273913 is a prime.

It is not a weakly prime, because it can be changed into another prime (190273933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95136956 + 95136957.

It is an arithmetic number, because the mean of its divisors is an integer number (95136957).

Almost surely, 2^190273913 is an apocalyptic number.

It is an amenable number.

190273913 is a deficient number, since it is larger than the sum of its proper divisors (1).

190273913 is an equidigital number, since it uses as much as digits as its factorization.

190273913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 190273913 is about 13793.9810424692. The cubic root of 190273913 is about 575.1658379877.

The spelling of 190273913 in words is "one hundred ninety million, two hundred seventy-three thousand, nine hundred thirteen".